ALPHA-FETOPROTEIN. AFP was first recognized as a fetal-specific globulin in 1956. It is synthesized in the yolk sac, gastrointestinal tract and liver of the fetus. Fetal plasma levels peak at 10 to 13 weeks' gestation and decline progressively until term, 7 while maternal levels peak in the third trimester.2 Laboratory measurements of AFP levels are reported as multiples of the median (MOM).etal plasma levels peak at 10 to 13 weeks' gestation and decline progressively until term, 7 while maternal levels peak in the third trimester. 2 Laboratory measurements of AFP levels are reported as multiples of the median (MOM).
Minority population growing in the United States, census estimates show. Minorities now make up about 35% of the country's population, and about 57% of the population in California. Meanwhile, the white population continues to decline.
According to the U.S. Census Bureau, 12.3% of the U.S. population is black, and 12.5% is Hispanic. Gallup Poll results from March 26-28, however, show that slightly less than one in 10 Americans can accurately identify that the population of either blacks or Hispanics in this country falls between 10% and 14%.mericans earning less than $20,000 estimate the black percentage of the U.S. population to be 42%, and the Hispanic percentage to comprise 37%.